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PM0044 Datasheet(PDF) 149 Page - STMicroelectronics

No. de pieza PM0044
Descripción Electrónicos  STM8 CPU programming manual
PDF  162 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PM0044 Datasheet(HTML) 149 Page - STMicroelectronics

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PM0044
STM8 instruction set
Doc ID 13590 Rev 3
149/162
Syntax
SRL dst
e.g. SRL (X)
Operation
Description
The destination is either a memory byte or a register.It perform an
unsigned division by 2.This instruction is compact, and does not affect any
register when used with RAM variables.
Instruction overview
N
⇒
R7
Set if bit 7 of the result is set (negative value), cleared otherwise.
Z
⇒
R7.R6.R5.R4.R3.R2.R1.R0
Set if the result is zero (0x00), cleared otherwise.
C
⇒
b0
Set if, before the shift, the LSB of register or memory was set, cleared
otherwise.
Detailed description
See also: RLC, RRC, SRA, SWAP, SLL, SRLW
SRL
Shift Right Logical
SRL
mnem
dst
Affected condition flags
VI1
H
I0
N
Z
C
SRL
Reg
--
--
N
Z
bit0
SRL
Mem
--
--
N
Z
bit0
dst
Asm
cy
lgth
Op-code(s)
ST7
ASRL A
1
1
44
✗
shortmem
SRL $15
1
2
34
XX
✗
longmem
SRL $1505
1
4
72
54
MS
LS
(X)
SRL (X)
1
1
74
✗
(shortoff,X)
SRLL ($15,X)
1
2
64
XX
✗
(longoff,X)
SRL ($1505,X)
1
4
72
44
MS
LS
(Y)
SRL (Y)
1
2
90
74
✗
(shortoff,Y)
SRL ($15,Y)
1
3
90
64
XX
✗
(longoff,Y)
SRL ($1505,Y)
1
4
90
44
MS
LS
(shortoff,SP)
SRL ($15,SP)
1
2
04
XX
✗
[shortptr.w]
SRL [$15]
4
3
92
34
XX
✗
[longptr.w]
SRL [$1505].w
4
4
72
34
MS
LS
([shortptr.w],X)
SRL ([$15],X)
4
3
92
64
XX
✗
([longptr.w],X)
SRL ([$1505.w],X)
4
4
72
64
MS
LS
([shortptr.w],Y)
SRL ([$15],Y)
4
3
91
64
XX
✗
0b7
b0
C



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